@article{GDZPPN002034042,
title = {Tactical decompositions of designs.},
journal = {Aequationes mathematicae},
volume = {25},
year = {1982},
pages = {123-152},
zbl = {0521.05012},
url = {http://dml.mathdoc.fr/item/GDZPPN002034042}
}
Beker, H.; Mitchell, Ch.; Piper, F. Tactical decompositions of designs.. Aequationes mathematicae, Tome 25 (1982) pp. 123-152. http://gdmltest.u-ga.fr/item/GDZPPN002034042/